Disk drill.



, PATENTED'SEPT.6,'1904.

- -W. A. VAN BRUNT.

DISK DRILL.

. I APPLICATION FILED APR. 14. 1904.

H0 MODEL. 2 SHEETS-SHEET 1..

a Q** r unlllllllllllliillu" Nov-769,202 PATENTED SEPT. 6,.1-904.

- W .A. VAN BRUNE- DISK DRILL.

APPLICATION I'ILED.APB.14. 1904.

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[WITNESSES Altornz UNITED STATES Patented September 6, 1904.

PATENT ()rrrcs.

DISK DRILL.

SPECIFICATION forming part of Letters Patent No. 769,202, dated September 6, 1904.

Application filed April 14, 1904.

To all whom it 771,114 concern:

Be it known that I, WILLARD A. VAN BRUNT, a resident of Horicon, in the county of Dodge and State of Wisconsin, have invented certain .new and useful Improvements in Disk Drills; and I do hereby declare the following to be a sists in certain novel features of constructionand combinations and arrangements of parts, as will be more fully hereinafter described, and pointed out in the claims.

In the accompanying drawings, Figures 1 and 2 are views in elevation of opposite sides of a drill. Fig. 3 is a view in section of the scraper for the concave face of the disk. Figs.

4 and 5 illustrate the boot in section, showing, ways of mounting scraper;

and Figs. 6, 7, 8, 9, 10, and 11 are views of modifications.

1 represents a seed-conducting boot, having a forwardly-projecting arm 2, with which the concavo-convex disk. 3 has rotary connection, anda drag-bar 4: is secured to this arm, as shown. In the drawings, Figs. 1 and 2, boot 1 and arm 2 are located on the concave face of the disk, and to keep clear the convex face of the disk a scraper 5 is employed. The scraper 5 is secured at one end on bolt 6, extends across the disk to the toe of boot'l, and is preferably slightly curved, as shown, althoughit may be straight, if preferred.-

The scraper may be of metal of sufficient strength to 'maintain itself against the toe of the boot and may be located between the boot and disk or in-a slot-or notch in the boot, as shown in Figs. 4: and 5. However, it will be seen that there are no securing devices employed between the toe of the boot and scraper, the only attachment of the scraper being at its I upper end.

drag-bar supports the disk and .made longer and curved in the Serial No. 203,107. (No model.)

Heretofore where scrapers have been secured to the toeof the boot by bolts and the like such securing devices ofier obstruction and cause the accumulation of trash, and also the parts become worn and are difficult to remove when it becomes desirable to disconnect the scraper. By securing the scraper at its upper end and having the same free at its lower end the securing devices are out of the way, do not accumulate trash, nor can trash collect between the toe of the boot and scraper owing to the close contact of the scraper there'- with, and the result is a decided improvement in this art.

The scraper might of course be secured in various ways, according to the construction of the boot and disk-mounting; but in all cases it would be secured at or nearthe center of the disk, project across the disk, and have no connection at its outer end with any part of the drill, although it must be maintained in close contact with the toe of the boot to prevent accumulation of trash at this point.

Modifications of the scraper-mounting are 'shownin Figs. 6, 7, 8, 9, 10, and 11, which will now be described. In Fig. 6 the arm 2 and drag-bar 4: are located on the convex face of the disk, and the scraper 5 is secured to the arm. In Fig. 7 the scraper is secured to the drag-bar in advance of the arm. In Fig. 8 the scraper is secured to the drag-bar in rear Of the arm. In Fig. 9 the drag-bar is secured to the boot which the disk has rotary mounting and to which the scraper is secured. In Fig. 10 the the scraper is the scraper is are of a circle with one end fixed to the boot, the drag-bar having a depending arm with which the disk has rotary mounting. To clean the concave face of the disk, my improved scraper 10 is employed and secured to arm 2, as shown in Figs. 1 and 2, This scraper is curved, as shown, and is provided at its center with a journal 14, mounted in the end of a spring-arm 11, which latter is curved to surround the journal and'has an eye to secured thereto, and in Fig. 11

receive the same, permitting of pivotal movement of the scraper to accommodate itself to and has a depending arm 9, in I every position of the disk and maintain uniform pressure throughout its contacting edge. The end of spring-arm 11 is bent back upon itself, forming a bulged spring 12, made with an opening alining with a slot in the main portion of the arm to receive a securing-bolt 13, and it will be seen that by tightening said belt or screwing inward a nut thereon the tension of the spring-arm can be increased as may be desired.

A great many changes might be made in the general form and arrangement of the parts described without departing from my invention, and hence I do not restrict myself to the precise details set forth, but consider myself at liberty to make such slight changes and alterations as fairly fall within the spirit and scope of my invention.

Having fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. In a disk drill, the combination with a disk, of a scraper fixed to the disk-mounting in proximity to the center of the disk, projecting across the face of the disk to the toe of the boot, and unattached at its outer end.

2. In a disk drill, the combination with a boot, of an arm thereon, a disk having rotary connection with said arm, a scraper secured to said arm, projecting across the disk and unattached at its outer end.

3. in a disk drill, the combination with a boot, of an arm thereon, a disk having rotary connection with the arm, a scraper secured to the said arm in proximity to the center 01 the disk, projecting across the disk, and held in close contact with the toe of the boot without attaching devices.

in testimony whereof I have signed this specification in the presence of two subscribing witnesses.

WILLARD A. VAN BRUNT.

\Vitnesses:

'F. H. CLAUsuN, H. MARSH. 

